Information Display Apparatus, Non-Transitory Computer-Readable Storage Medium and Display Control Method

1. An information display apparatus comprising: a display section configured to display an object thereon; an operation section configured to operate the object; a recording section; and a processing section configured to control the display section and the operation section, and operate the display section to display a first screen showing the object and a second screen showing a screen transition diagram, into a display area of the display section, the screen transition diagram representing change in display of the first screen arid showing a first figure representing a first screen-transition and a second figure branched from the first figure and representing a second screen-transition to be recognizable, the first screen-transition representing a change in display of the first screen, the second screen-transition representing another change in display of the first screen starting at a certain point in the first screen-transition, on the first screen being displayed in the display area based on a screen transition being one of the first screen-transition and the second screen-transition, create screen transition information of the screen transition and record the screen transition information into the recording section, at a series of points in time, the screen transition information associating information for identifying the screen transition, a time in the screen transition starting at a starting point of the screen transition, and screen data of the first screen at the time in the screen transition, with each other, and determine: a user command to return to a previous point in time in the first screen-transition, and a first user choice regarding whether to overwrite the screen transition information of the first screen-transition that follows the previous point in time and a second user choice regarding whether to maintain the screen transition information of the first screen-transition that follows the previous point in time, the first user choice and the second user choice being received using the screen transition diagram on the second screen.

2. The information display apparatus of claim 1 , wherein the processing section is configured to, operate the display section to display, in the screen transition diagram, a main line representing a time course of the first screen-transition, a branch line representing a time course of the second screen-transition, and an indication mark for indicating a point on the main line or the branch line, and in response to receiving an operation to move the indication mark along the main line or the branch line through the operation section, acquire the screen transition information corresponding to an end position of movement of the indication mark, from the recording section, to reproduce display of the first screen in the display area by using the screen data of the acquired screen transition information.

3. The information display apparatus of claim 2 , wherein the first user choice is determined by an operation to make change in display of the first screen through the operation section under a condition that the first screen is displayed in the display area based on the screen data at the certain point of the first screen-transition by moving the indication mark along the main line.

4. The information display apparatus of claim 2 , wherein the processing section is configured to in response to receiving an operation to move the indication mark in a direction perpendicular to the main line through the operation section under a condition that the first screen is displayed in the display area based on the first screen-transition, record the screen transition information of the second screen-transition based on change in display of the first screen starting at time of receiving the operation to move the indication mark.

5. The information display apparatus of claim 2 , wherein the processing section is configured to operate the display section to display the indication mark on each of the main line and the branch line, and operate the display section to display the first screen corresponding to a point indicated by the indication mark on the main line and the first screen corresponding to a point indicated by the indication mark on the branch line, together in the display area.

6. The information display apparatus of claim 2 , wherein the processing section is configured to in response to receiving an operation to input additional information through the operation section under a condition that the first screen corresponding to a point indicated by the indication mark on the main line or the branch line is displayed in the display area, operate the display section to display the additional information around the point indicated by the indication mark on the one of the main line and the branch line.

7. The information display apparatus of claim 2 , wherein the processing section is configured to operate the display section to further display an image showing display of the first screen corresponding to a certain point on one of the main line and the branch line, around the certain point on the one of the main line and the branch line.

8. The information display apparatus of claim 2 , wherein the first user choice and the second user choice are determined based on a location of the end position of movement of the indication mark relative to the main line.

9. The information display apparatus of claim 1 , wherein the processing section is configured to, on receiving an operation to make change in display of the first screen through the operation section under a condition that the first screen is displayed in the display area based on the first screen-transition, determine whether to overwrite the screen transition information of the first screen-transition based on the change in display of the first screen or to record the screen transition information of the second screen-transition based on the change in display of the first screen, on the basis of a user's operation on the screen transition diagram.

10. A non-transitory computer-readable storage medium storing a display control program to be executed in an image forming apparatus including a display section configured to display an object and an operation section configured to operate the object, the display control program, when being executed by a processor of the image forming apparatus, causing the processor to perform processes comprising: operating the display section to display a first screen sho g the object, into a display area of the display section; and operating the display section to display a second screen showing a screen transition diagram representing change in display of the first screen, into the display area, wherein the operating the display section to display the second screen includes operating the display section to display in the screen transition diagram a first figure representing a first screen-transition and a second figure branched from the first figure and representing a second screen-transition to be recognizable, the first screen-transition representing a change in display of the first screen, the second screen-transition representing another change in display of the first screen starting at a certain point in the first screen-transition, on the first screen being displayed in the display area based on a screen transition being one of the first screen-transition and the second screen-transition, creating screen transition information of the screen transition and recording the screen transition information into the recording section, at a series of points in time, the screen transition information associating information for identifying the screen transition, a time in the screen transition starting at a starting point of the screen transition, and screen data of the first screen at the time in the screen transition, with each other, and determining: a user command to return to a previous point in time in the first screen-transition, and a first user choice regarding whether to overwrite the screen transition information of the first screen-transition that follows the previous point in time and a second user choice regarding whether to maintain the screen transition information of the first screen-transition that follows the previous point in time, the first user choice and the second user choice being received using the screen transition diagram on the second screen.

11. The non-transitory computer-readable storage medium of claim 10 , wherein the operating the display section to display the second screen includes operating the display section to display, in the screen transition diagram, a main line representing a time course of the first screen-transition, a branch line representing a time course of the second screen-transition, and an indication mark for indicating a point on the main line or the branch line, and the operating the display section to display the first screen includes, in response to receiving an operation to move the indication mark along the main line or the branch line through the operation section, acquiring the screen transition information corresponding to an end position of movement of the indication mark, from the recording section, and reproducing display of the first screen in the display area by using the screen data of the acquired screen transition information.

12. The non-transitory computer-readable storage medium of claim 11 , wherein the first user choice is determined by an operation to make change in display of the first screen through the operation section under a condition that the first screen is displayed in the display area based on the screen data at a certain point of the first screen-transition by moving the indication mark along the main line.

13. The non-transitory computer-readable storage medium of claim 11 , wherein the recording the screen transition information includes, in response to receiving an operation to move the indication mark in a direction perpendicular to the main line through the operation section under a condition that the first screen is displayed in the display area based on the first screen-transition, recording the screen transition information of the second screen-transition based on change in display of the first screen starting at time of receiving the operation to move the indication mark.

14. The non-transitory computer-readable storage medium of claim 11 , wherein the operating the display section to display the second screen includes operating the display section to display the indication mark on each of the main line and the branch line, and the operating the display section to display the first screen includes operating the display section to display the first screen corresponding to a point indicated by the indication mark on the main line and the first screen corresponding to a point indicated by the indication mark on the branch line, together in the display area.

15. The non-transitory computer-readable storage medium of claim 11 , wherein the operating the display section to display the second screen includes, in response to receiving an operation to input additional information through the operation section under a condition that the first screen corresponding to a point indicated by the indication mark on the main line or the branch line is displayed in the display area, operating the display section to display the additional information around the point indicated by the indication mark on the one of the main line and the branch line.

16. The non-transitory computer-readable storage medium of claim 11 , wherein the operating the display section to display the second screen includes operating the display section to further display an image showing display of the first screen corresponding to a certain point on one of the main line and the branch line, around the certain point on the one of the main line and the branch line.

17. The non-transitory computer-readable storage medium of claim 11 , wherein the first user choice and the second user choice are determined based on a location of the end position of movement of the indication mark relative to the main line.

18. The non-transitory computer-readable storage medium of claim 10 , wherein on receiving an operation to make change in display of the first screen through the operation section under a condition that the first screen is displayed in the display area based on the first screen-transition, determining whether to overwrite the screen transition information of the first screen-transition based on the change in display of the first screen or to record the screen transition information of the second screen-transition based on the change in display of the first screen, on the basis of a user's operation on the screen transition diagram.

19. A display control method of an image display apparatus including a display section configured to display an object and an operation section to operate the object, the display control method comprising: operating the display section to display a first screen showing the object, into a display area of the display section; and operating the display section to display a second screen showing a screen transition diagram representing change in display of the first screen, into the display area, wherein the operating the display section to display the second screen includes operating the display section to display in the screen transition diagram a first figure representing a first screen-transition and a second figure branched from the first figure and representing a second screen-transition to be recognizable, the first screen-transition representing a change in display of the first screen, the second screen-transition representing another change in display of the first screen starting at a certain point in the first screen-transition, on the first screen being displayed in the display area based on a screen transition being one of the first screen-transition and the second screen-transition, creating screen transition information of the screen transition and recording the screen transition information into the recording section, at a series of points in time, the screen transition information associating information for identifying the screen transition, a time in the screen transition starting at a starting point of the screen transition, and screen data of the first screen at the time in the screen transition, with each other, and determining: a user command to return to a previous point in time in the first screen-transition, and a first user choice regarding whether to overwrite the screen transition information of the first screen-transition that follows the previous point in time and a second user choice regarding whether to maintain the screen transition information of the first screen-transition that follows the previous point in time, the user choice being received using the screen transition diagram on the second screen.

20. The display control method of claim 19 , wherein the operating the display section to display the second screen includes operating the display section to display, in the screen transition diagram, a main line representing a time course of the first screen-transition, a branch line representing a time course of the second screen-transition, and an indication mark for indicating a point on the main line or the branch line, and the operating the display section to display the first screen includes, in response to receiving an operation to move the indication mark along the main line or the branch line through the operation section, acquiring the screen transition information corresponding to an end position of movement of the indication mark, from the recording section, and reproducing display of the first screen in the display area by using the screen data of the acquired screen transition information.

21. The display control method of claim 20 , wherein the first user choice is determined by an operation to make change in display of the first screen through the operation section under a condition that the first screen is displayed in the display area based on the screen data at a certain point of the first screen-transition by moving the indication mark along the main line.

22. The display control method of claim 20 , wherein the recording the screen transition information includes, in response to receiving an operation to move the indication mark in a direction perpendicular to the main line through the operation section under a condition that the first screen is displayed in the display area based on the first screen-transition, recording the screen transition information of the second screen-transition based on change in display of the first screen starting at time of receiving the operation to move the indication mark.

23. The display control method of claim 20 , wherein the operating the display section to display the second screen includes operating the display section to display the indication mark on each of the main line and the branch line, and the operating the display section to display the first screen includes operating the display section to display the first screen corresponding to a point indicated by the indication mark on the main line and the first screen corresponding to a point indicated by the indication mark on the branch line, together in the display area.

24. The display control method of claim 20 , wherein the operating the display section to display the second screen includes, in response to receiving an operation to input additional information through the operation section under a condition that the first screen corresponding to a point indicated by the indication mark on the main line or the branch line is displayed in the display area, operating the display section to display the additional information around the point indicated by the indication mark on the one of the main line and the branch line.

25. The display control method of claim 20 , wherein the operating the display section to display the second screen includes operating the display section to further display an image showing display of the first screen corresponding to a certain point on one of the main line and the branch line, around the certain point on the one of the main line and the branch line.

26. The display control method of claim 19 , wherein on receiving an operation to make change in display of the first screen through the operation section under a condition that the first screen is displayed in the display area based on the first screen-transition, determining whether to overwrite the screen transition information of the first screen-transition based on the change in display of the first screen or to record the screen transition information of the second screen-transition based on the change in display of the first screen, on the basis of a user's operation on the screen transition diagram.

27. The display control method of claim 19 , wherein the first user choice and the second user choice are determined based on a location of the end position of movement of the indication mark relative to the main line.

28. An information display apparatus comprising: a display section having a display screen; an operation section configured to receive an operation to display an object on a first screen of the display screen of the display section; a recording section configured to store transition information of the display screen, the transition information representing information of a change in a display of the display screen in response to operations received on the operation section at a series of points in time; an indication section configured to, on a basis of the transition information stored in the recording section, reproduce on the display screen the display at a certain point in time among a series of points in time; a first control section configured to, when an object is added onto the screen at the certain point in time reproduced by the indication section, in response to an operation received on the operation section, delete the transition information at a point or points in time after the certain point in time from the transition information stored in the recording section, and record transition information of the screen on which the object is added, into the recording section at another series of points in time starting at the certain point in time; a second control section configured to, when an object is added onto the screen at the certain point in time reproduced by the indication section, in response to an operation received on the operation section, maintain the transition information of the screen at a point or points in time after the certain point in time stored in the recording section, and record transition information of the screen on which the object is added, into the recording section at another series of points in time starting at the certain point in time; and a choosing section configured to allow a user to provide: an indication of the certain point in time, and a first choice regarding whether to record the transition information on a basis of operations of the first control section, and a second coice regarding whether to record the transition information on a basis of operations of the second control section, the indication of the certain point in time, the first choice, and the second choice being received using a screen transition diagram on a second screen of the display screen.

29. The information display apparatus of claim 28 , wherein the display section displays the screen transition diagram on the second screen based on the transition information recorded on the basis of operations of the second control section.

30. The information display apparatus of claim 28 , the indication section is configured to, operate the display section to display, in a screen transition diagram, a main line representing a time course of the first screen-transition, a branch line representing a time course of a second screen-transition, and an indication mark for indicating a point on the main line or the branch line, in response to receiving an operation to move the indication mark along the main line or the branch line through the operation section, acquire the screen transition information corresponding to an end position of movement of the indication mark, from the recording section, to reproduce display of the first screen in the display area by using the screen data of the acquired screen transition information, and the choosing section determines the first user choice and the second user choice based on a location of the end position of movement of the indication mark relative to the main line.